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66 lines
2.2 KiB
66 lines
2.2 KiB
/* |
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* Filter graphs |
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* copyright (c) 2007 Bobby Bingham |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef FFMPEG_AVFILTERGRAPH_H |
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#define FFMPEG_AVFILTERGRAPH_H |
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#include "avfilter.h" |
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typedef struct AVFilterGraph { |
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unsigned filter_count; |
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AVFilterContext **filters; |
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} AVFilterGraph; |
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/** |
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* Add to a graph a graph described by a string. |
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* @param graph the filter graph where to link the parsed graph context |
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* @param filters string to be parsed |
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* @param in input to the graph to be parsed (TODO: allow several) |
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* @param inpad pad index of the input |
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* @param in output to the graph to be parsed (TODO: allow several) |
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* @param inpad pad index of the output |
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* @return zero on success, -1 on error |
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*/ |
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int avfilter_graph_parse_chain(AVFilterGraph *graph, const char *filters, AVFilterContext *in, int inpad, AVFilterContext *out, int outpad); |
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/** |
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* Add an existing filter instance to a filter graph. |
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* @param graph The filter graph |
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* @param filter The filter to be added |
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*/ |
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void avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter); |
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/** |
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* Configure the formats of all the links in the graph. |
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*/ |
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int avfilter_graph_config_formats(AVFilterGraph *graphctx); |
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/** |
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* Configure the parameters (resolution, etc) of all links in the graph. |
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*/ |
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int avfilter_graph_config_links(AVFilterGraph *graphctx); |
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/** |
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* Free a graph and destroy its links. |
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*/ |
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void avfilter_destroy_graph(AVFilterGraph *graph); |
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#endif /* FFMPEG_AVFILTERGRAPH_H */
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